Everyone was able to accurately guess it was Katri (plaidpants). Whom, I kindly blurred out her real name on her ID card, as she hates it, and doesn't want people to know it.

Several people were close on the locate(s)/event. It was the very first Coffee Meet, which started at Dana St. Coffee (the first picture) in Mountain View, and ended up across the street at Fiesta del Mar (the second picture).